that's kinda what I thought. Thanks.

 

Does anybody know if this will work?
http://cgi.ebay.com/ebaymotors/ws/eB...056083361&rd=1

 

3.9 LSD vs 4.1 LSD. Pro and cons?

 

3.9 has higher top speed, 4.1 will have better acceleration. You may need to recalibrate your speedo.

 

4.1 is the miata one?

 

3.9 is Automatic or Convertible, 4.1 is Manual non-GTUs, 4.3 is GTUs, all for RX-7s. I know nothing about Miatas.

 

Well my car was an automatic with the 3.9 LSD, and i put the 4.1 Open diff from a 89 GTU.

I am thinking about putting on the 3.9LSD and changing the internals to the 4.1 from the open diff. that should get me a 4.1 LSD right?

I changed my speedo cable cuz the old auto one got lost, now i got one thats a tad shorter which fits the manual tranny.

JasonNYC

 

heh. you are talking as if 3.9 and 4.1 that you would actually see and feel the difference

 

That should work.
That's a deal unless the bidding goes through the roof!


-Ted

 

yeah, last time it went up to like 150 plus the 125 shipping...

 

Spotskater (james) put his 4.1 internals in a 3.9 LSD case. So i will be doing this, just want to make sure that by doing so the car will have a 4.1 LSD. he told me to get a dial indicator to set the backlash. Anything else i need?

Jason NYC